Hyperionova said this quote

When he first met Kai, Sehun already knew that he was about to lose entire world. Although at the time, he thought that Kai would try to destroy his world. How can you hang on to something so incomprehensible? How can you keep pouring love into an abyss? An abyss. That was what Kai was. This town was not his home. This house was not his home. Kai was. Being in his arms, having him inflict a sort of beautiful pain was home. Sehun fell for Kai and he fell for Sehun just as hard.